Impact of three years of data from the Wilkinson Microwave Anisotropy Probe on cosmological models with dynamical dark energy

Abstract

The first three years of observation of the Wilkinson Microwave Anisotropy Probe (WMAP) have provided the most precise data on the anisotropies of the cosmic microwave background (CMB) to date. We investigate the impact of these results and their combination with data from other astrophysical probes on cosmological models with a dynamical dark energy component. By considering a wide range of such models, we find that the constraints on dynamical dark energy are significantly improved compared to the first year data.

5 pages, 2 figures; v2: more explanatory title, added references, minor clarifications, matches published version

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• Cosmology and the Fate of Dilatation Symmetry
• Can dark energy evolve to the Phantom?
• Challenges for scaling cosmologies

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